forked from luck/tmp_suning_uos_patched
88dca4ca5a
The pgprot argument to __vmalloc is always PAGE_KERNEL now, so remove it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> [hyperv] Acked-by: Gao Xiang <xiang@kernel.org> [erofs] Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Wei Liu <wei.liu@kernel.org> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Christophe Leroy <christophe.leroy@c-s.fr> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: David Airlie <airlied@linux.ie> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Laura Abbott <labbott@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Nitin Gupta <ngupta@vflare.org> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Sakari Ailus <sakari.ailus@linux.intel.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mackerras <paulus@ozlabs.org> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Will Deacon <will@kernel.org> Link: http://lkml.kernel.org/r/20200414131348.444715-22-hch@lst.de Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* malloc.h - NTFS kernel memory handling. Part of the Linux-NTFS project.
|
|
*
|
|
* Copyright (c) 2001-2005 Anton Altaparmakov
|
|
*/
|
|
|
|
#ifndef _LINUX_NTFS_MALLOC_H
|
|
#define _LINUX_NTFS_MALLOC_H
|
|
|
|
#include <linux/vmalloc.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/highmem.h>
|
|
|
|
/**
|
|
* __ntfs_malloc - allocate memory in multiples of pages
|
|
* @size: number of bytes to allocate
|
|
* @gfp_mask: extra flags for the allocator
|
|
*
|
|
* Internal function. You probably want ntfs_malloc_nofs()...
|
|
*
|
|
* Allocates @size bytes of memory, rounded up to multiples of PAGE_SIZE and
|
|
* returns a pointer to the allocated memory.
|
|
*
|
|
* If there was insufficient memory to complete the request, return NULL.
|
|
* Depending on @gfp_mask the allocation may be guaranteed to succeed.
|
|
*/
|
|
static inline void *__ntfs_malloc(unsigned long size, gfp_t gfp_mask)
|
|
{
|
|
if (likely(size <= PAGE_SIZE)) {
|
|
BUG_ON(!size);
|
|
/* kmalloc() has per-CPU caches so is faster for now. */
|
|
return kmalloc(PAGE_SIZE, gfp_mask & ~__GFP_HIGHMEM);
|
|
/* return (void *)__get_free_page(gfp_mask); */
|
|
}
|
|
if (likely((size >> PAGE_SHIFT) < totalram_pages()))
|
|
return __vmalloc(size, gfp_mask);
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* ntfs_malloc_nofs - allocate memory in multiples of pages
|
|
* @size: number of bytes to allocate
|
|
*
|
|
* Allocates @size bytes of memory, rounded up to multiples of PAGE_SIZE and
|
|
* returns a pointer to the allocated memory.
|
|
*
|
|
* If there was insufficient memory to complete the request, return NULL.
|
|
*/
|
|
static inline void *ntfs_malloc_nofs(unsigned long size)
|
|
{
|
|
return __ntfs_malloc(size, GFP_NOFS | __GFP_HIGHMEM);
|
|
}
|
|
|
|
/**
|
|
* ntfs_malloc_nofs_nofail - allocate memory in multiples of pages
|
|
* @size: number of bytes to allocate
|
|
*
|
|
* Allocates @size bytes of memory, rounded up to multiples of PAGE_SIZE and
|
|
* returns a pointer to the allocated memory.
|
|
*
|
|
* This function guarantees that the allocation will succeed. It will sleep
|
|
* for as long as it takes to complete the allocation.
|
|
*
|
|
* If there was insufficient memory to complete the request, return NULL.
|
|
*/
|
|
static inline void *ntfs_malloc_nofs_nofail(unsigned long size)
|
|
{
|
|
return __ntfs_malloc(size, GFP_NOFS | __GFP_HIGHMEM | __GFP_NOFAIL);
|
|
}
|
|
|
|
static inline void ntfs_free(void *addr)
|
|
{
|
|
kvfree(addr);
|
|
}
|
|
|
|
#endif /* _LINUX_NTFS_MALLOC_H */
|